Yankee Counterbore With Built-In Pilot: Std, For 1 in Screw Size, 3/16 in Bore Dia., 1 in Shank Dia. Model: 301-1

Cleveland Counterbore For Interchangeable Pilot: High Speed Steel, 3 Flutes, 5/8 in Bore Dia. Model: C46435

Cleveland Aircraft Length Counterbore With Interchangeable Pilot: High Speed Steel, 4 Flutes Model: C46902

Drill America DEWPIL3/8X3/16 3/8"X3/16" Pilots For Counterbore

Made In USA Reverse Counterbore: 1-5/8" Dia, 3/4" Pilot Hole, 4 Flutes, High Speed Steel - 1" OAL, 1/32" Corner Rad, Standard Pilot 185-10 & 185-10

Made In USA Reverse Counterbore: 1-1/2" Dia, 5/8" Pilot Hole, 4 Flutes, High Speed Steel - 7/8" OAL, 1/32" Corner Rad, Standard Pilot 185-9 & 185-9

Made In USA Reverse Counterbore: 1-3/4" Dia, 3/4" Pilot Hole, 4 Flutes, High Speed Steel - 1" OAL, 1/32" Corner Rad, Standard Pilot 185-10 & 185-10

Made In USA Reverse Counterbore: 1-3/8" Dia, 5/8" Pilot Hole, 4 Flutes, High Speed Steel - 7/8" OAL, 1/32" Corner Rad, Standard Pilot 185-9 & 185-9

KEO Counterbore: Std, For M3.5 Screw Size, 6.50 mm Bore Dia., 3.9 mm Pilot Dia., 71.00 mm Overall Lg Model: 902-000-048

Value Collection 13/32" Diam, 3/8" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 4" OAL, Bright Finish, High Speed

Value Collection 23/32" Diam, 1/4" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 3-1/8" OAL, Bright Finish, High Speed

Made In USA Reverse Counterbore: 5/8" Dia, 1/4" Pilot Hole, 4 Flutes, High Speed Steel - 5/8" OAL, 1/32" Corner Rad, Standard Pilot 185-5 & 185-5

Made In USA Reverse Counterbore: 11/16" Dia, 1/4" Pilot Hole, 4 Flutes, High Speed Steel - 5/8" OAL, 1/32" Corner Rad, Standard Pilot 185-5 & 185-5

Precise 21 Piece H Speed Steel Interchangeable Pilot Counterbore Set - 2007-0023

Made In USA 5/32" Head Diam, 3/16" Shank Diam, 6" Overall Length, Counterbore Pilot - Bright Finish, High Speed Steel

Made In USA Reverse Counterbore: 3/8" Dia, 1/8" Pilot Hole, 4 Flutes, High Speed Steel - 1/2" OAL, 1/32" Corner Rad, Standard Pilot 185-2 & 185-2

Made In USA Reverse Counterbore: 1/2" Dia, 1/4" Pilot Hole, 4 Flutes, Solid Carbide - 1/2" OAL, 1/64" Corner Rad, Standard Pilot 185-5 & 185-5

Value Collection 31/32" Diam, 1/4" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 3-1/8" OAL, Bright Finish, High Speed

Made In USA Reverse Counterbore: 7/16" Dia, 1/8" Pilot Hole, 4 Flutes, High Speed Steel - 1/2" OAL, 1/32" Corner Rad, Standard Pilot 185-2 & 185-2

Precise 7 Piece H Speed Steel 3 Flute Solid Pilot Counterbore Set - 2007-0002

Alvord Polk Solid Pilot Counterbore: 0.789" Dia, 0.531" Pilot - 1/2" Socket-Head Cap Screw Compatible, 1/2" Shank Dia, 7-1/2" OAL, High Speed Steel

Hss Interchangeable Pilot Counterbore, 1-7/8" - 43-575-0

Cleveland C91723 Counterbore, Hss, For Screw Size 1/2

Value Collection Solid Pilot Counterbore: 1-3/16" Dia, 13/16" Pilot, 3 Flutes - 3/4", 1" Shank Dia, High Speed Steel | Part GH8862484

Hss Interchangeable Pilot Counterbore, 49/64" - 43-546-1

Made In USA 9/16" Diam, 1/2" Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 4-5/16" OAL, Bright Finish, Carbide-Tipped

Drill America DEWCSCBR6 6 .150 Continuous Pilot Capscrew Counterbore

Made In USA Reverse Counterbore: 9/16" Dia, 5/32" Pilot Hole, 4 Flutes, High Speed Steel - 5/8" OAL, 1/32" Corner Rad, Standard Pilot 185-3 & 185-3

Value Collection 1-1/8" Diam, 1/2" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore 5

Cleveland C46674 Counterbore, Hss, 25/32" Pilot

HSS 2 Flute Counterbore, Pilot For Fillister Hd Screw,3/8" Pilot DIA X 19/32" D, 4-3/8" OAL

Value Collection H Speed Steel Solid Pilot Counterbore 1" Diam Straight Shank Gh8862641 - 08862641

Made In USA 1/4" Head Diam, 5/16" Shank Diam, 6" Overall Length, Counterbore Pilot - Bright Finish, High Speed Steel

Value Collection 1" Diam, 1/4" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 3-1/8" OAL, Bright Finish, High Speed

Interstate | Value Collection Solid Pilot Counterbore: 26mm Dia, 17mm Pilot, 3 Flutes - Cobalt Steel | Part E1419016

Alvord Polk Solid Pilot Counterbore: 0.8465" Dia, 0.5709" Pilot - 0.5512" Socket-Head Cap Screw Compatible, 5/8" Shank Dia, 7-1/2" OAL, High Speed